Home / 9,174.50-12,660.81-5,637.62

Finding the Fourth Proportional to 9,174.50, 12,660.81 and 5,637.62

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Solution

The fourth proportional to 9,174.50, 12,660.81 and 5,637.62 is: 7,779.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,174.50 : 12,660.81 = 5,637.62 : x
  2. Step 2: Convert to fraction form
    9,174.50/12,660.81 = 5,637.62/x
  3. Step 3: Cross multiply
    9,174.50x = 12,660.81 × 5,637.62
  4. Step 4: Simplify right side
    9,174.50x = 71,376,835.67
  5. Step 5: Solve for x
    x = 71,376,835.67/9,174.50
  6. Step 6: Final answer
    x = 7,779.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.